Yes, streaming quality can be improved. But again, I think the radio analogy applies here. Radio content can be made very high quality too. But most times, it is highly compressed. There is little dynamic range in most radio broadcasts.

Streaming is a great way to discover music on the cheap. You can take a chance on '50s, '60, and '70s music and find some new favorites. Streaming leads to more risk taking I believe. Naturally, there was some amazing music created in those decades and if you like what you're hearing on Spotify by that artist, you're more likely to spend some money on their vinyl record for a better listening experience. I don't see streaming as a threat at all.